9. shot (n.) a consecutive series of pictures that constitutes a unit of action in a film
The vacuum level is determined by the pressure differential between the evacuated volume and the surrounding atmosphere. Several units of measure can be used. Most refer to the height of a column of mercury â usually inches of mercury (in.-Hg) or millimeters of mercury (mm-Hg).
The procedure to follow in this case is to go from volume of methane --> moles of methane --> moles of water --> mass water. The formula we need to use to convert from volume to moles is the ideal gas law, PV=nRT. But first we need to convert 1 m^3 to liters.